At first, there was only one place, then both knees, and then slowly grew larger. It's not painful or itchy. The bottom is red. It's like sand. The surface is rough and feels like sandpaper. It's very hard and dry. And if you pull it down a little, the lower layer will bleed. After taking a bath every time, you can rub off a layer with blisters, but you can't use too much force, otherwise you will bleed.
In fact, the symptoms are caused by fungal infection. The performance of this kind of chapped disease should be timely coordinated with the corresponding drugs, such as treating with ketoconazole ointment and applying a more moisturizing moisturizer at the same time, so as to better alleviate the symptoms.
You'd better do a further examination to see if there have been some similar fungal infections before. The possibility is relatively high. You should still pay attention to it, and then make a targeted adjustment and treatment in this regard.
Your symptom should be caused by fungal infection and other factors, so it is recommended that you first go to the dermatology department of the hospital to make a clear diagnosis through fungal culture examination or skin cleaning, and then give targeted treatment, and do not treat it by hand at will, which will cause infection damage.